Footnotes(1) 1998-2017 indexes based on a substantially smaller sample.(2) For the Northeast and the South, Dec. 1977=100.(3) For Washington, Nov. 1977=100. For Baltimore, March 1978=100. For Philadelphia, December 1977=100.(4) For the U.S., Philadelphia, Northeast, & South, Dec. 1982 = 100. For Washington & Baltimore, Nov. 1982=100.(5) December 1997=100.

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD, CBSA includes Bucks, Chester, Delaware, Montgomery, and Philadelphia Counties in Pennsylvania; Burlington, Camden, Gloucester, and Salem Counties in New Jersey; New Castle County in Delaware; and Cecil County in Maryland.

Northeast region includes the states of Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont.

South region includes the District of Columbia and the states of Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, and West Virginia.

Footnotes(1) 1998-2017 indexes based on a substantially smaller sample.(2) For the Northeast and the South, Dec. 1977=100.(3) For Washington, Nov. 1977=100. For Baltimore, March 1978=100. For Philadelphia, December 1977=100.(4) For the U.S., Philadelphia, Northeast, & South, Dec. 1982 = 100. For Washington & Baltimore, Nov. 1984=100.(5) December 1997=100.

Philadelphia-Camden-Wilmington, PA-NJ-DE-MD, CBSA includes Bucks, Chester, Delaware, Montgomery, and Philadelphia Counties in Pennsylvania; Burlington, Camden, Gloucester, and Salem Counties in New Jersey; New Castle County in Delaware; and Cecil County in Maryland.

Northeast region includes the states of Connecticut, Maine, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, and Vermont.

South region includes the District of Columbia and the states of Alabama, Arkansas, Delaware, Florida, Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Virginia, and West Virginia.